EN ISO 11670:2003

SLOVENSKI STANDARD
01-september-2003
1DGRPHãþD
SIST EN ISO 11670:2000
Laserji in laserska oprema - Preskusne metode za parametre laserskega žarka -
Stabilnost položaja žarka (ISO 11670:2003)
Lasers and laser-related equipment - Test methods for laser beam parameters - Beam
positional stability (ISO 11670:2003)
Laser und Laseranlagen - Prüfverfahren für Laserstrahlparameter - Strahllagestabilität
(ISO 11670:2003)
Lasers et équipements associés aux lasers - Méthodes d'essai des parametres du
faisceau laser - Stabilité de visée du faisceau (ISO 11670:2003)
Ta slovenski standard je istoveten z: EN ISO 11670:2003
ICS:
31.260 Optoelektronika, laserska Optoelectronics. Laser
oprema equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 11670
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2003
ICS 31.260 Supersedes EN ISO 11670:1999
English version
Lasers and laser-related equipment - Test methods for laser
beam parameters - Beam positional stability (ISO 11670:2003)
Lasers et équipements associés aux lasers - Méthodes Laser und Laseranlagen - Prüfverfahren für
d'essai des paramètres du faisceau laser - Stabilité de Laserstrahlparameter - Strahllagestabilität (ISO
visée du faisceau (ISO 11670:2003) 11670:2003)
This European Standard was approved by CEN on 21 February 2003.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2003 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11670:2003 E
worldwide for CEN national Members.

CORRECTED 2003-06-25
Foreword
This document (EN ISO 11670:2003) has been prepared by Technical Committee ISO/TC 172
"Optics and optical instruments" in collaboration with Technical Committee CEN/TC 123 "Lasers
and laser-related equipment", the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of
an identical text or by endorsement, at the latest by October 2003, and conflicting national
standards shall be withdrawn at the latest by October 2003.
This document supersedes EN ISO 11670:1999.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium, Czech
Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and
the United Kingdom.
Endorsement notice
The text of ISO 11670:2003 has been approved by CEN as EN ISO 11670:2003 without any
modifications.
NOTE Normative references to International Standards are listed in Annex ZA (normative).
Annex ZA
(normative)
Normative references to international publications
with their relevant European publications
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of
any of these publications apply to this European Standard only when incorporated in it by
amendment or revision. For undated references the latest edition of the publication referred to
applies (including amendments).
NOTE Where an International Publication has been modified by common modifications, indicated
by (mod.), the relevant EN/HD applies.
Publication Year Title EN Year
ISO 11145 2001 Optics and optical instruments - Lasers EN ISO 11145 2001
and laser-related equipment -
Vocabulary and symbols
ISO 11146 1999 Lasers and laser related equipment - EN ISO 11146 1999
Test methods for laser beam
parameters - Beam widths, divergence
angle and beam propagation factor
INTERNATIONAL ISO
STANDARD 11670
Second edition
2003-04-01
Lasers and laser-related equipment —
Test methods for laser beam
parameters — Beam positional stability
Lasers et équipements associés aux lasers — Méthodes d'essai des
paramètres du faisceau laser — Stabilité de visée du faisceau

Reference number
ISO 11670:2003(E)
©
ISO 2003
ISO 11670:2003(E)
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©
ii ISO 2003 – All rights reserved

ISO 11670:2003(E)
Contents Page
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Coordinate systems and beam axis . 3
4.1 Beam axis distribution . 3
4.2 Coordinate systems . 3
5 Test principles . 5
5.1 Beam positional stability . 5
5.2 Beam angular stability . 5
6 Measurement arrangement, test equipment and auxiliary devices . 5
6.1 Preparation . 5
6.2 Control of environment . 5
6.3 Detection system . 6
6.4 Beam-forming optics, optical attenuators, beam splitters, focusing elements . 6
6.5 Calibration . 6
7 Test procedures . 7
7.1 General . 7
7.2 Beam positional stability . 7
7.3 Beam angular stability . 7
8 Evaluation . 7
8.1 Beam positional stability . 7
8.2 Beam angular stability . 8
9 Test report . 10
Annex A (informative) Propagation of absolute beam stability . 12
Annex B (informative) Decoupling of short- and long-term fluctuations . 15
©
ISO 2003 – All rights reserved iii

ISO 11670:2003(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International
Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 11670 was prepared by Technical Committee ISO/TC 172, Optics and optical instruments, Subcommittee
SC 9, Electro-optical systems.
This second edition cancels and replaces the first edition (ISO 11670:1999), Clauses 3 and 9 of which have
been technically revised. Annexes A and B have been added.
©
iv ISO 2003 – All rights reserved

ISO 11670:2003(E)
Introduction
The centre of a laser beam is defined as the centroid or first-order spatial moment of the power density
distribution. The current propagation axis of a beam is then the straight line connecting two centroids measured
at two different planes simultaneously in a uniform, homogeneous medium. Beam axis instability may be
characterized by transverse displacements and angular movements that are either monotonic, periodic or
stochastic in time.
The movement of a laser beam may be randomly distributed and uniform in amplitude in all directions. In
general, the beam may move a greater amount in one direction. If one direction predominates, the procedures
specified in this International Standard can be used to identify that dominant direction (the beam x-axis) and its
azimuthal location relative to the axes of the laboratory system.
This International Standard provides general principles for the measurement of these quantities. In addition,
definitions of terminology and symbols to be used in referring to beam position are provided.
©
ISO 2003 – All rights reserved v

.
vi
INTERNATIONAL STANDARD ISO 11670:2003(E)
Lasers and laser-related equipment — Test methods for laser
beam parameters — Beam positional stability
1Scope
This International Standard specifies methods for determining laser beam positional as well as angular stability.
The test methods given in this International Standard are intended to be used for the testing and
characterization of lasers.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced document
(including any amendments) applies.
ISO 11145:2001, Optics and optical instruments — Lasers and laser-related equipment — Vocabulary and
symbols
ISO 11146:1999, Lasers and laser-r
...